48 hours? Excellent!
I'll be honest, this is a really fun game! The graphics are simple, but pleasant and not painful to watch. The music is a good choice as well. I'm surprised that the seemingly randomly created platforms and enemies are well-positioned. The gameplay isn't entirely original, but it it definitely well-executed, upgrades and all. really surprising that you did this in 48 hours. Great work, fellow Newgorunder!